Air-intake agitator for internal-combustion engines



I Nov. 16 .19 26. 1,606,916.

F. A. BAGl-EY AIR INTAKE AGITATOR FOR INTERNAL COMBUSTION ENGINES Filed April 1, 1926 INTAKE AIR FRED. A BAGLEY.

abbo'mma iatented Nov. 16, 192.6.

UNITED STATES meant PATENT caries; f

FRED A. BAGLEY, OF CEDAR RAPIDS, IOVJA, ASSIGNOB T L. E. IVIOLAUGHLIN.

AIR-INTAKE AGITATOB FOR INTERNAL-COMBUSTION ENGINES:

Application filed April 1, 1926. Serial No. 99,072.

My present invention, in its broad aspect, has reference to improvements in devices for producing a more effective mixture of fuel oil or gasolene vapor and air, thereby to attain more effective carburation in an internal combustion engine. Furthermore my device may be incorporated permanently into a conventional form or carburetor, or sold separately as an accessory for incorporation into the air intake to a carburetor.

Under present practice it is customary to direct a straight blast of air over gasolene or fuel oil, as the case may be, as it is fed to the conventional carburetor. This causes the lower stratum of the air column to become too richly mixed with fuel oil or gasolene while the upper stratum of the air column is directed into the cylinders unmixed with fuel oil or gasolene. Of the mixed portion of the air column, that part coming in direct contact with the gasolene or fuel oil is so completely or;heavily mixed that it floods or slugs, and the force of the air current sweeps this heavier part containing the unmixed quantity of fuel oil or gasolene into the cylinders. The walls of the cylinders being hot, the fuel oil or gasolene is burned producing carbon deposits which adhere to the cylinder walls and piston ends. The lighter portion of the unmixed fuel oil or gasolene works its way past the piston rings, removes lubrication from the cylinder walls, et cetera, causes loss of compression, and finally passes into the crank case where it dilutes or lowers the quality of the lubricating oil therein.

In order to eliminate these disadvantages, I provide a device which may be incorporated directly into the assembly of the carburetor or placed in the air intake to the carburetor as an accessory thereto, which causes the incoming air to assume a whirling" or cyclonic motion so that all portions of the air column become uniformly and properly mixed with the gasolene or fuel oil vapors thereby producing a much more effective combustible charge or mixture. The device which I employ for this purpose is a fixed helical or worm-shaped casting of any suitable metal, or a machined metal part, which may be mounted as a part of the conventional carburetor assembly, and in the air intake chamber or pipe thereof, or which may be mounted in the air pipe leading to the carburetor. In any event, it may be incorporated into the mechanism of an internal combustion engine quickly and without the use of special tools, and may bemanufactured in quantities and sold at a small price as a spare part or accessory independent of the type of power plant or carburetor to which it is desi ned to be applied. In use it has been found that my device aifectsa saving in gasolene consumption, eliminates carbon trouble to a large extent, produces a more uniform and effective mixture, increases power, and eliminates overheated motors caused either by too rich or too poor mixture of fuel.

The structural elements employed to accomplish the above, and other results and objects, will be her inafter more fully described in detail and pointed out in the claims appended hereunto and forming part of this specification.

In the drawing Figure 1 is a View of a conventional type of carburetor, with an air intake pipe, and my device mounted therein, the direction of motion of the air column being'shown by the arrows, and I Figure 2 is a detail view of my device per se.

In the drawings wherein like characters of reference are used to designate like or similar parts throughout the several views (A) designates generally a conventional type of carburetor, having a body (B), a connection (0) t0 the intake manifold (not shown) or a power plant, a gasolene intake (D), and an air intake in axial parallelism with the surface of liquid in the carburetor into which is tapped an air pipe (F).

My invention consists in a helical or worm-shaped casting, (G), shown in detail in Figure 2, and this may either be mounted as a permanent part of the carburetor assembly, or as an accesssory thereto located in the air pipe In mounting my worm (G) in the pipe (F) it is merely necessary to insert it in the pipe and then strike in ribs in the pipe to hold it in place. The straight air blast (as shown by the arrows a) coming into the pipe (F) has a trajectoryparallel with the surface of liquid in the carbureter and is given a whirling or cyclonic motion (as indicated by the arrows b) in passing the worm, and it retains this motion as it passes through the carburetor and on to the cylinders of an internal combustion engine thereby attaining the ends which I have described. Attention or machined part,

is called to the fact that my device is a single, integral, and exceedingly simple casting, or machined part, which may be turned out in quantities at an exceedingly lOW price and sold as'an accessory, and also that it is adaptable for use with all of the conventional forms of carburetors and internal combustion engines;

VJhile in the foregoing, there has been illustrated and described such combination and arrangement of elements as constitute the preferred forms of my anchorage, itis nevertheless desired to emphasize the fact that interpretation of my invention should only be conclusive when made in the light oi the subjoined claim. 1 I I I claim V i I The combination with a carbureter for in ternal combustion engines and the air intake pipe therefor, said air intake pipe being axially parallel With the surface of the liquid in the carbureter, of a single helically shaped body for removable interpolation in the air intake pipe and spaced an appreciable distance liroin and in advance of the spray nozzle of the carbureter for causing the body oi? air to assume a completely developed whirling or cyclonic motion in a trajectory paralleling the plane of the surface of the liquid in the carbureter whereby the .body of air \vill'be unltormly' mixed with vapor, and said air intake pipe being-in struck at points in advance of and behind the helical body to prevent accidental displacement of the body axially of the air intake pipe. i

In testimony Whereofl'I atlix my signature hereunto,

FRED A. BAGLEY. 

